--  @testpoint:opengauss关键字clob(非保留)，作为函数名
--关键字不带引号-成功
drop function if exists clob;
create function clob(i integer)
returns integer
as $$
begin
    return i+1;
end;
$$ language plpgsql;
/
--清理环境
drop function clob;

--关键字带双引号-成功
drop function if exists "clob";
create function "clob"(i integer)
returns integer
as $$
begin
    return i+1;
end;
$$ language plpgsql;
/
--清理环境
drop function "clob";

--关键字带单引号-合理报错
drop function if exists 'clob';
create function 'clob'(i integer)
returns integer
as $$
begin
    return i+1;
end;
$$ language plpgsql;
/

--关键字带反引号-合理报错
drop function if exists `clob`;
create function `clob`(i integer)
returns integer
as $$
begin
    return i+1;
end;
$$ language plpgsql;
/